Tag Archives: elixir

Why list and charlist are confusing in Elixir

Posted on October 6, 2017 by daveti

This post talks about list and charlist in Elixir, and discusses one specific issue in Elixir. Let’s look at the confusing thing in Elixir: iex(2)> a = [7] ‘\a’ iex(3)> b = ‘\a’ ‘\a’ iex(4)> a == b true iex(5)> … Continue reading →

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A PoC of DoS attack in Elixir Actor Model

Posted on September 29, 2017 by daveti

The naive way of using the Actor model in Elixir is using “receive” in a loop, which is then “spawn”d as a Erlang process. Unfortunately, a potential DoS attack could happen if the pattern matching is not coded carefully with … Continue reading →

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A pitfall of GenServer programming in Elixir

Posted on September 29, 2017 by daveti

OTP as a programming platform/framework, empowers not only Erlang, but also Elixir. This post looks into a pitfall when programming GenServer in Elixir, and provides a potential solution. All callbacks in the GenServer behavior have a limited and pre-defined possible … Continue reading →

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